Method of manufacturing molding



March 26, 1940. w. J. HALL 2,195,086

METHOD OF MANUFACTURING MOLDING Original Filed April 26, 1938 Z INVENTOR William-ll Hall BY P 8 ATTORNEYS Another object of Patented Mar. 26, 1940 it v flz-asaoscq rmrnon or MANUFACT RING .M DING" William J. Hall; Detroit; Mien; assig'norfl'to' fierronzimmers Original application" Moulding Company, Mich., a corporation of Illinois April, 26", 1938, [Serial No. I Dividedand this application Noveni- Detroit, f

ber 28, 1938, swarms-242,707

. 1:.Claimr, (01. 113-116) The invention relates generally to molding and has particular relation to ornamental molding for use in motor vehicles. j y

In certain respects, the invention provides improvements over the structuresclaimed in my co-pending application Ior patent Serial No. 187,281,

application for patent April 26, 1938.

One object of the ings having integral attaching prongs wherein improved means are employed for seating'the molding on a support and for concealing theat taching prongs.

Another object of Another object of the invention is to provide an-improved molding comprising inner and outer members substantially of the same shape, wherein the inner member is provided with integral attaching prongs.

nel-shaped' molding having integral attaching prongs projecting from one edge portion" of the molding. I

Other objects of parent irom the following specification,

the invention will become apthe drawing to which it relates, and from. the claim" hereinafter set forth. i

For a better understanding of the invention,

drawing wherein: Figure 1 illustrates the inner side of a door for a motor vehicle having a molding supplied thereto as constructed according to one form of the invention;

" Fig. 2 is a cross-sectional viewtaken 'substan-f' tially along the line 2-2 of Fig. 1',- but on a larger scale;

Fig. 3 is a generally perspective view of a strip of molding such as embodied in Fig. 2, as seen 'prior to its application;

Fig. 4 is a view similar molding constructed according to another form inner member of the molding shown by Fig. 4,..

of the invention; 1

Fig. 5 is a perspective view illustrating the as seen at the intermediate stage in its manufacture, along with Fig, 6 isalview similar to Fig. 5, ill trating inner member after the flange. from which the disclosed. and,

tion;

I filed January 27,1933, and italso constitues a division of my co-pending Serial No. 204,383, filed invention is to provide mold ner sides of a motor ered' by, a fiber board this assembly by means of prongs on the moldthe invention is to provide molding substantially channel-shaped in crosssection and which h as'integral attaching prongs located substantially at the center line of the 'molding.

-.:tr"ated comprises an inner member I5 I of channel shape and which has, at its edges, in- ,1 i

wardlyturned flanges 16 and I! that liesub- "st'antially in the same plane. .edges of the flanges in a direction away i v stantially at right angles to the plane of the the invention is to-provide I a e an improved'method of manufacturing a chaningthe strip to provide the flanges to Fig. 3 but illustrating of a, relatively thin and a lower die member .employed in forming the attaching prongs;

prongs project has been bent into its final posi- While molding,

to the invention, maybe applied in different places; it, is particularly adaptedfor application m on upholstered parts of a vehicle body such' as on "the inner sides of the doors. Normally, the in,- vehicle door will be covlfl, padding II, and fabric such as constructed according I2; The molding is adapted to be fastened to From the inner l6 and I1, prongs l8 project from the channel and sub- A number of these prongs are provided'along each flange'and such prongs may be. aligned transversely or they may be arranged f in -laterally alternating'relation. It is apparent that the inner member may be constructed-from a fiat strip of steel by striking out metal-along side edges of the strip to form the prongs; shap l6 and I1, and then forming the channel and simultaneously In'its generalaspects, the method of vmember is disclosed and The inner member alone may constitute mold-- ing' but, as shown,-it is assembled with an outer substantially the same shape v be constructed of a malleable, less expensive steel and the outer member may be' constructed non-tarnishable metal such as stainless steel. 'Thus, a less expensive metal is employed for actual attachment purposes and since it is more malleable, formation of the prongs is rendered easier and simpler and,

moreover,-application of the molding is less'difficult since the prongs may be clamped against--v I disposing the flangesand prongs in the relation ShoWn.

\ iorming almolding' claimed in the co-pending application previously mentioned. I Y. v

- prongs are clinched against the inner sideoi the the side edge flanges l6 and more easily concealed and even though the flanged edges of the molding did not actually contact the fabric l2, theprongs would not 011-, dinarily be visible. Again the flanges l6 and I1 provide a substantial and flat area of engage-2 arrangement of rollers is such 25 and 21 junction with the ;channel. edge. i

were arranged in their final positions .before to the edge of the flange 25. "flanges 25 and 21 in the positionsshown in Fig. i 5, a die member 3ll,may be against the under side of the flange 2'! andkthen difiiculty.

When the molding is applied to a support such as shown by Fig. 2, the flanges at the edges of the molding are pressed against the fabric I2 and the inner ends of the prongs are clampedover against'the inner side of the fiber board, as .indicated at 23;

of the side edges of the molding, by providing ment of the molding and fabric and thus less indentation of the fabric would occur when the fiber board. a W

The cover 20 may be assembled with the inner member by telescoping the former over the latter or the flanges on the cover member. may be of such dimensions and shape that the cover may be snapped onto the inner member by pressing the cover downwardly over the inner member until the edges of the cover snap under the flanges Ififand I7. I L In the construction shown by Fig. 4, the inner member haswider flanges 2d and 25 and prongs are provided only on flange 25 substantially along; the center line of the molding! The cover member in this construction may be substantially identical to the cover 20 shown by 'Fig.1 3 and may beassembled with the inner member in substantially the same way as previously described.

In manufacturing the inner member of the I structure shown by Fig. 4, a flat strip of metal is passed between forming rolls to provide the channel, flanges 24 and 25, and an additionalflange 21 from which the prongs are to be formed. The that the flanges are. removed from the final positions they are to assume although it is desirable "to place the flanges near their final position so that the final shaping operation will not require an undesirable bending of the flange 25 about its If the flanges forming the prongs, itv would be more difliicult to place the prong forming dies and to form' the prongs owing to the fact that such prongs extend By disposing the easily positioned a complementary punch member maybe used against the upper side of flang 21 to strike out i so as to leave the prongs.

By having the prongs inwardly H, the prongs area? v ture shown by Fig. 5.

prongs project is bent to case may be.

2,195,086 the inner side of the supporting memberwith less member shown in Figure 4, and as also illustrated by theremaining-flgures, preferably is formed by operations wherein a flat strip of metal is passed betweenrolls so as to form the struc- Then followingthe prong forming, operation, the flange from which the its flnal position. The cover member in each instance will preferably be 'formed' by passing a strip of stainless steel between rollers in order to obtain the desired shape. 'ilt isevident from the description and from the drawing that themolding may be applied easily and that once the prongs are clinched over against the inner side of the fiber board, the

molding is positively attached. In either case, I the'upperjends of the prongs are concealed owing primarily to the overhanging edges of the molding. Itis' also evident that the constructions maybe manufactured simply and inexpensively throughstamping or rolling operations, as the Either construction is inexpensive since a minimum number of parts is required and 'since'the'attaching prongs are integral with the molding.

Although-more than one form of the invention has I been illustrated and described in detail, it

" will'be apparent to those skilled in the art that various modiflcations may be made without departing from the scope of the appended claim.

What is claimed is 'Ihe methodofmanufactufing molding, of substantially channel shape having an inturned flange atone edge that is disposed substantially in the plane of both edges and attachment prongs projecting from the inner edge of the flange and away from the channel, which comprises providing a flat strip oi metal, transversely forming it to provide the channeland said flange with the latter removed from its inga second'flange that projects from the edge of the first flange, striking out portions of the second flange to leave prongs projecting from the edge of the first flange and then bending the first flange'about the edge of the channel to dispose the flange in; said plane.

WILLIAM J. HALL.

final position, also forrn- 

